Improvement in telegraph cut-outs



w. E. LINN. Telegraph Ent-Buts.

Patented oec. 2.1873.

jizz/WHW' UNITED STATES PATENT OFFICE.

WILLIAM G. LINN, OF BLOOMFIELD, IOWA.

IMPROVEMENT IN TELEGRAPH CUT-CUTS.

Specification forming part of Letters Patent No. 145,064, dated December2, 1873; application tiled April 21, 1873.

.To all whom it may concern:

Be it known that I, WILLIAM G. LINN, of Bloomeld, in the county of Davisand State of Iowa, have invented a new and Improved Telegraph GutOut;and I do hereby declare that the following is a full, clear, and exactdescription thereof, reference being had to the accompanying drawingsmaking part of this speciiication, in which- Figure 1 is a front view ofthe improved cutout representing the main line disconnected from abranch otiice. Fig. 2 is a similar view of the same parts, showing themain line connected with. branch office. Fig. 3 is a section takentransversely through the movable center.

Similar letters ot' reference indicate corresponding parts in theseveral figures.

This invention is 'designed to improve cut outs for telegraph-wires bythe employment of spring conducting-ar ms, in combination with anintermediate movable circuit changer, whereby a person can, by a singlemovement ot' said changer, cut out77 an office from the main line, orconnect it with such line at pleasure, as will be hereinafter explained.

The following description of my invention will enable others skilled inthe art to understand it.

'In the accompanying drawings, A represents a board, on which theinstrument is applied, and which, in practice, will be fastened up inafconvenient position near the operators ta-.

ble. In the center of the board A, and connected to it by a centralpivot, g, is a disk, O, having applied to its periphery two separatedconducting-strips, c c, forming raised rims. B B and B B represent fourmetallic springarms, which are secured to the board A by means ofscrewbolts a a, a.' a', and adjustingscrews b b, b b.

side.

In Fig. 1 of the drawing the lower ends of the spring-arms B B arerepresented resting on the conductingstrip c, while the upper ends ofthe lower arms B B are resting on the conducting-strip o. By thisadjustment or' the disk the circuit of the main line is from theleft-hand post a, through the two arms B B, and conducting-strip c, andis cut out from the ofcc.

By means of a handle, h, the disk rcan be readily moved about itscenter, and adjusted as represented in Fig. 2, which establishes aconnection with the office through arms B B and strip c on the left-handside, and thence through arms B and strip c/ on the right-hand Thus itwill be seen that the adjustment can be made by a slight movement of thedisk O.

The shoulders 17,17', 7c, and Z on the conducting-strips c c serve asright and left hand stops for determining the proper positions for thedisk, and the screws which are between the ends of the arms B B aredesigned for holding the ends of the latter against theconductingestrips c c.

n It will be observed that the main-line wire may be connected either tothe posts a a or a M -that is to say, either end of the instrument maybe up.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, 1s

The movable disky with its sepa-rated conducting-strips, combined withthe conductingarms B B B' B', substantially as described.

WILLIAM GEORGE LINN.

Witnesses W. J. HAMILTON, EDWARD F. HAMILTON.

